• San Francisco,
    United States
  • December
  • 3 miles/5K, 6 miles/10K, 13.1 miles/Half Marathon, 26.2 miles/Marathon, 50K, 50 miles, Relay
  • Trail Race
  • Event Website


Bloomington, Indiana, United States
12 2
"TNF 50 Champs - 2013 Review"
Aid Stations
Course Scenery
Expo Quality
Elevation Difficulty
Race Management
Matt 's thoughts:

This was my third time racing the TNF Endurance Challenge 50 Mile Championships in California. Overall, it is a well-run race in a beautiful location. The 10,000+ feet of climbing and descending make it tough, but the trails are generally quite runnable (non-technical), so it is accessible to most runners as long as you prepare for the hills.

My few complaints are (a) the pre-dawn start, and (b) slow return time for drops bags and headlamps. In particular, there is no reason for this race to start before sunrise (and this would also solve the headlamp drop and return issue!). A 7 a.m. start would make much more sense than the current 5 a.m. start.

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